Progress of structural simulation of sulfur vulcanized rubber network is reviewed. It introduces the latest development, theoretical methods and arithmetic methods on network structure studies.

综述了橡胶硫黄硫化网络结构的研究进展，介绍了近年来用于研究网络结构的理论方法和计算方法。

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Ms Truss said an over-reliance on calculators meant children missed the rigorous grounding in mental and written arithmetic they needed to progress.

BBC: Government bans calculators from primary maths tests